The Lee Company manufactures a wide variety of miniature, pre-tested cartridge check valves that offer proven reliability and performance. With almost one million valves successfully in service, some for over 20 years, Lee check valves set the standard for small size, light weight and proven reliability. Four types of miniature check valves are available:
Ø 0.187 and a 0.250 inch diameter ball-type check valves designed for 3000 psi systems and available screened and unscreened, forward and reverse flowing.
Lee Lo-Lohm Chek®
Poppet-style, high flow-gain check valves that are wide open at 15 psid, and offer the lowest Lohm rate (highest flow). Available in 0.187, 0.250, 0.375 and 0.500 inch diameters, in both forward and reverse flow directions to meet almost any space requirement. Versions with a 440C CRES poppet are available for each size to accommodate harsh duty applications.
Lee Hi-Q Chek®
Lee Hi-Q Chek valves offer the greatest feasible flow capacity for valve cartridges between 1/2 and 1 inch in diameter. The valves feature a unique cage and poppet assembly that maximizes flow capacity at an effectively low cost. A robust design and 100% performance testing ensures consistent, long term performance in 4000 psi systems.
Lee High Pressure Chek®
Poppet-style check valves for system pressures up to 8000 psi. Available in six sizes, from 0.125 inch diameter, up through 0.500 inch diameter.
NACE Compliant High Pressure Chek®
NACE compliant versions of the High Pressure Cheks are a perfect solution for applications in the harsh environments found in the oil tool industry. Available in 0.125, 0.187, 0.250, 0.375 and 0.500 inch diameters, these valves are designed to check pressures up to 15,000 psid.
Lee Side Exit Chek®
0.093, 0.187 and a 0.343 inch diameter check valves with convenient side exit porting and enhanced silt resistance. The 0.093 inch diameter is available unscreened, with forward flow only for 4000 psi systems. The 0.187 inch diameter is available screened and unscreened, with forward flow only for 4000 psi systems. The 0.343 inch diameter is available unscreened, with reverse flow only for 5000 psi systems.
Lee Zero Leak Chek®
0.187 and a 0.250 inch diameter Zero Leak, poppet-style design for 3000 psi systems. Both sizes are available in forward and reverse flow directions with a choice of two different elastomers. The 0.187 inch diameter is available screened and unscreened. The 0.250 inch diameter is unscreened.
Lee Pilot Operated Chek®
The Lee Pilot Operated Chek® is an all metal, pressure piloted to open check valve. It is a 0.250 inch diameter, poppet-style valve designed for 3000 psi systems.